Absorbent product.



UNITED STATES PirTnN'r OFFICE.

VICTOR RAISIN, OF PARTS, FRANCE, ASSIGNOR- To SOCIETE COMPAGNIE INDUSTRIE DES ALCOOLS DE LARDECHE, OF PARIS, FRANCE.

} ABSORBENT- PRODUCT.

l il 1,023,417. i No Drawingl l i l I To all whdm a may ooncc'rn Be it lizno'wn that l, V'lc'ron RAISIN, a. citizen of: the Rc 'niib-lic of France, and resident pf Paris, France, have invented a new and ul'sb't'ul Inliprovemcnt in Absorbent Products, l'hioh improvement is fully set forth in the followingsymcification.

This invintion relates to an absoubing product int -nded to be mixed with viscous matters, Silo-l1 for instance as molasses and similar inato'ials, so to obtain a nonprod lct that can be easily manipulated. l i

lVhen saw dust or finely divided wood is treated by the well known process a. de-

scription of which may be found, for example,-in British patent to Zimmerman, No. 27,534,?! of 1907, by means of sulfurous acid under pressure, in the presence of heat, a portion of the cellulose, as well as the tannic acid of the wood, are transformed into sugar which isrccuperatcd by sl-ib mitting the whole mass to a prolonged washing. The. results of that operation are, on the onehand a solution of sugar, and on the other hand, as a residue, the deincrusted portion of the cellulose of the saw dust which had not been attacked and waich is freed from sugar and tannic acid, and is in a porous condition due to the deincrustation process, whereby the inclisting mineral matters have been eliminated. The said residue is subsequently submitted to a suitable drying by compression, by means of hydroextractors or by heat, so that its proportion of moisture should be for instance less than 20%. The product is then ready to be. used as an absorbent. F or utilizing the product in question, it is mixed with the material which it is desired that it should absorb, for ii'istancc with molasses. The final product is a pulverulent or powder shaped mass which can be placed into sacks and kept in the shape of powder or compressed into cakes. The remaining cellulose of the saw dust, which has been freed from sugar or acids, simply plays the mechanical part of an absorbent. The mixture has all the chemical properties of the material ab; sorbed by the saw dust, while being in thpll dry shape and perfectly easy to manipulate Saw dust thus treated could be made to'absorb up to parts of molasses for;30 parts of sawdust, without its losing its property Sp co ification of Letters Patent.

of being made into cakes or placed into sacks.

This product has the advantage of enabling molasses and similar viscous-materials, after they have been mixed, to be easily transported and n'ianipula-ted. In that way, the sometimes considerable waste due to the adhesion. of the said viscous materials to the walls of the vesselscontaining the same, is avoided. The materials thus absorbed ttl'l 't lf-30 be preserved for a long time; and then recovered at any desired moment by means of a suitable process, For example, the absorbent product may be used fori' 'absorbing distillcrs Wash to render the latter casilystored or shipped. lVhen it is desired to' extract the glycerin which is 0011-.

dissolved out of the absorbentproduct by means of suitable solvents. The wash may then be treated erin. o

The use of this product is more particularly advantageous for obtaining preservationof the products intended tobe distilled and which have to be stored for some time. This product complies thus with the condifor the recovery of the glyctions remiired for producing a gea fodder with molasses.

In certain cases the above could be utilized as an absorbent with being subinitti-ul to a previous washing. Agood torage could be made by mixing parts of the absorbent product with parts of molasses thus obtaining a mixture which could be in'imcdiately manipulated if the molasses containmL-as is usual-about 40 to 50 per cent. "of sugar. cos. '1. he absorbent product could be for instance mixed with concentrated vinasses or distillers Wash-obtained by the,

distillation of beetroot, molasses orgrain, in order to render the said vinasses easy to Immipulate ando brinfg" thein into such state as to enable them to treated.

Claim-s: I 1. The herein described material comprising the deincrusted porous cellulose residue the wood sugar process, dehydratedto a 105 2 The herein described material'eompris mg the (lelliCIllStGd porous cellulose residue lsssthan 20% moisture content.

of the wood-sugar process washed and. de-

Patented Mar. 26, 1912. Application filed May 19. 1909. Serial No. 497,105.

.lts applications are numerbe chemically hydrated to a less than 20% moisture co nspecification in t-li pr e'sence of two subtent. v

3. The combination of a deincrusted p0- rous cellulose residue of the Wood-sugar 5 process, washed and dehydrated to a less than 20% mi-sture content, with dist-filers Wash.

'In testimony whereof I have signed this scribing Witnessesv I VICTOR RAISIN. Witnesses:

EMILE LEDRET, D ms B. MASON. 

